obviously just statistically, if you look at age, justice ginsburg, ruth bader ginsburg is the most likely one if you just look at age. the longest serving ones, justices scalia and kennedy on the court.those type of factors weigh in. >> i'm going to have my director jason throw up a graphic that will show ruth bader ginsburg, 79 years old. justice scalia, 76. anthony kennedy, as well. at relatively spry 74 there's stephen breyer. how would their retirements shift the court's ideology? >> well, it depends a lot on who is replacing those individuals. if justice ruth bader ginsburg, who is one of the more liberal justices on the court is replaced by a democrat, less change. but it will be monumental change if justice ginsburg is replaced by a republican or if a democrat, president obama were to replace justice scalia or justice kennedy. those would be monumental changes in what is already a very closely divided court on at least a lot of hot button issues. >> yeah. the most recently retired justices were john paul stevens went out at 90. david souter 69, sandra day o'connor 75. is there a tr